Answer:
The length of each red rod is 10 cm and the length of each blue rod is 14 cm
Step-by-step explanation:
Let 
x ----> the length of each red rod in centimeters
y ----> the length of each blue rod in centimeters
we know that
 ----> equation A
 ----> equation A
 ----> equation B
 ----> equation B
Solve the system by graphing
Remember that the solution of the system of equations is the intersection point both graphs
using a graphing tool
The solution is the point (10,14)
see the attached figure
therefore
The length of each red rod is 10 cm and the length of each blue rod is 14 cm
 
        
             
        
        
        
Answer:
what do you need here there has to be something to do here your just giving me a variable
Step-by-step explanation:
 
        
                    
             
        
        
        
The given ratio of the sides of the triangles is 4:10:7. Let the sides be 4x, 10x and 7x .
And given perimeter is 252 meters .
Perimeter is the sum of all sides. So we get

Dividing both sides by 21

So the sides are

 
        
                    
             
        
        
        
Answer:
I think its 20.....
Step-by-step explanation:
Plz don't be mad if I'm wrong..... lol :/
 
        
             
        
        
        
Answer:
x=4
Step-by-step explanation:
-2(x+2)=-12
x+2=-12/-2
x+2=6
x=6-2
x=4